Can someone help me please ?

What must occur for air masses to form fronts

What is the volume of 2.5 moles of nitrogen gas (n2)at standard temperature and pressure (stp)?

What is the temperature in kelvin of a gas if it is allowed to expand from 1.50 l to 4.50 l? the initial temperature is 10.0°c and pressure is constant throughout the change. which equation should you use? t2= v2/v1 t1 what is the final temperature? ⇒ 849 k these are the answers.